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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
There are numerous I/O modules that a typical DCS has access to. Which of the modules below is described as one that converts 8 or 16 inputs to a digital signal?
There are numerous threats to the security of a DCS. Which of the security measures below would used be to prevent unauthorized changes from an operator?
Which of the cable types below is not generally used for DeviceNet segments?
In IPv4, it is possible to divide the class of network into a smaller network. Which of the terms below best describes this process?
A defined area of geographical coverage is commonly called an area network. Which of the area networks below is the second smallest in area covered?
There are several different network access methods available to wired Ethernet. Which of the methods below is the one used by wired Ethernet?
The term "Repeaters" relates best to which of the answers below?
There are many versions of Modbus, one of those is Modbus RTU. Which of the answers below correctly orders the components of the Modbus RTU frame?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "I"?
There are numerous Ethernet standards, a naming formula was developed to identify characteristics of physical connections. Which of the answers below lists all of the information contained in the naming convention?
Providing power to remote sites in a SCADA system has several difficulties associated with it. Which of the answers below would be best defined as one that is used for continuous power generation where there are no other options?
Which of the error detection methods below best relates to an "effectiveness of 90%"?
Digital signals are, either specific or transitory, voltage levels represent states of logic. Which of the signal encoding methods below uses voltage transitions to represent logic states?
There are many options to choose from for alarm states. Which of the following alarm states can be best described as a temporary suppression of an alarm?
A defined area of geographical coverage is commonly called an area network. Which of the area networks below is best known for the being smallest power consumer, with the fastest data transmission rates?
There are many different software programs that are commonly used by a DCS. Which of the programs below would allow the control strategy to be programmed once the I/O for the controllers was configured?
The OSI model describes how a network should be arranged. Which of the layers below concern network topologies the most?
The quality of a OUT parameter status field has several different classifications. Which of the classifications below can be described as the block supports a cascade path and the value quality is good?
A defined area of geographical coverage is commonly called an area network. Which of the area networks below best known for use with USB and bluetooth devices?
Communication technology is generally specific to a type of area network. Which of the area networks below would IDSN and DSL be used primarily?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "C"?
Which answer below best represents the recommended standard for a null modem cable?
Which of the answers below represents one of the types of cables not available for use in a Foundation fieldbus H1 transmission system?
Which of the recommended standards would be best described as having a half -duplex transmission system?
Modbus protocol can implement data encapsulation over IP based networks. Which of the statements below is an disadvantage of using encapsulation?